EP1458191A2 - Network camera embedded with hub - Google Patents
Network camera embedded with hub Download PDFInfo
- Publication number
- EP1458191A2 EP1458191A2 EP04004353A EP04004353A EP1458191A2 EP 1458191 A2 EP1458191 A2 EP 1458191A2 EP 04004353 A EP04004353 A EP 04004353A EP 04004353 A EP04004353 A EP 04004353A EP 1458191 A2 EP1458191 A2 EP 1458191A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- network
- network camera
- digital video
- camera
- hub
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
- H04N5/77—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television camera
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/44—Star or tree networks
- H04L2012/445—Star or tree networks with switching in a hub, e.g. ETHERNET switch
Definitions
- the present invention relates to a network digital video recorder system. More specifically, the invention relates to a network camera embedded with a hub or a switching hub in a network digital video recorder system.
- a digital video recorder compresses and stores video signals captured by a plurality of video cameras (for example, four or sixteen channels) connected by wires or displays the video signals.
- the digital video recorder is frequently used for the purpose of security of buildings, offices, ATMs and so on.
- a video signal captured by a video camera is converted to an analog signal through a video encoder and transmitted to the digital video recorder. Then, the digital video recorder converts the analog signal to digital data through a video decoder, and compresses and stores the digital data or reproduces it.
- the digital video recorder is one-to-one connected to a video camera through a cable. Accordingly, when 1600 video cameras are installed in one building, for instance, 1600 connection cables are required. When 16 channels are used, 100 digital video recorders are needed.
- a network camera and network digital video recorder were introduced.
- Techniques with respect to the network DVR are disclosed in WO02080033 and Korea Patent No. 2002-0018988.
- FIG.1 shows the construction of a conventional network camera.
- the network camera includes a camera module 30, a video encoder 40 and a data compressor 50.
- a compressed data packet outputted from the data compressor 50 is connected to a digital video recorder 60 through the Ethernet.
- the camera module 30, video encoder 40 and data compressor 50 can be integrated or individually configured.
- the data packet that is encoded and compressed by each network camera 55 is sent through the Ethernet 70 to the network digital video recorder 60.
- the network digital video recorder 60 reproduces the data packet or transmits it to store.
- An object of the present invention is to provide a network digital video recorder system having a plurality of network cameras and a network digital video recorder that receives data packets transmitted from the network cameras through the Ethernet, in which the network cameras are serially connected to the Ethernet without using hubs to easily transmit compressed video data to the network digital video recorder.
- Another object of the present invention is to provide a network digital video recorder system in which a plurality of network cameras are not cascade-connected to the Ethernet using hubs but serially connected to the Ethernet and they transmit compressed video data packets to a network digital video recorder within a data transmission bandwidth of the Ethernet.
- a network digital video recorder system including a plurality of network cameras and a network digital video recorder that receives data packets transmitted from the network cameras through a network, in which each of the network camera (the nth network camera) comprises a video encoder that converts an image captured by the network camera to a digital video signal; a data compressor that compresses the digital video signal outputted from the video encoder; and a hub that multiplexes a data packet (output of the nth network camera) outputted from the data compressor and a data packet (output of the (n-1) th network camera) up-linked and outputted from a neighboring network camera (the (n-1) th network camera), and up-links the multiplexed data packets to another neighboring network camera (the (n+1) th network camera), the hub being embedded in the network camera.
- each of the network camera comprises a video encoder that converts an image captured by the network camera to a digital video signal; a data compressor that compresses the digital video signal outputted
- FIG.2 shows the configuration of a network camera according to the present invention.
- the network camera according to the present invention includes a camera module 30, a video encoder 40, a data compressor 50 and an embedded hub 60.
- the camera module 30, video encoder 40 and data compressor 50 shown in FIG.2 are identical to those of the network camera used in the conventional digital video recorder system.
- the network camera shown in FIG.2 can additionally include a voice encoder (not shown) that converts a voice input signal to a digital voice signal and a voice signal compressor (not shown) to simultaneously process a compressed video signal and a compressed voice signal and transmit them.
- the network camera can additionally have a central processing unit (not shown) for processing the compressed video signal and compressed voice signal.
- the network camera according to the present invention can use a signal input unit, an encoding unit and a data compression unit of a conventional network camera. Detailed explanations for these components are omitted.
- the present invention is characterized by a switching hub 60 embedded in the network camera.
- the hub 60 multiplexes a compressed data packet 151 outputted from the data compressor 50 of the nth network camera in which the hub 60 is embedded and a compressed data packet 152 transmitted from a neighboring network camera (that is, the (n-1) th network camera) to up-link the multiplexed data packets to another neighboring network camera (that is, the (n+1) th network camera).
- all of the network cameras can be serially connected using their embedded hubs. Furthermore, all of the network cameras can be connected to the Ethernet without using additional external hubs. For example, in the case that a 4-port hub is used in a prior art, four network cameras are grouped and connected to one hub and the output port of each hub is cascade-connected to the hub of the next stage.
- FIG. 2 shows that the hub 60 has only two ports 151 and 152.
- One port 151 receives the data packet outputted from the nth network camera in which the hub 60 is embedded, and the other port 152 accepts the data packet from the adjacent network camera (the (n-1) th network camera).
- the hub is embedded in the network camera so that a large number of hubs (for cascade connection) are not needed when a plurality of video cameras are connected to the Ethernet.
- the network cameras can be simply serially connected and up-linked to the Ethernet.
- FIG.3 shows a method of connecting a plurality of network cameras to the Ethernet according to the present invention.
- each network camera is embedded with a hub including at least two input ports and an output up-link port.
- the up-link port of a network camera 58 is connected to the input port of an adjacent network camera 57 such that the output data packet of the network camera 58 and the output data packet of the network camera 57 are multiplexed and up-linked to another adjacent network camera 56.
- the present invention embeds a switch, which multiplexes a compressed video data packet to be transmitted to the Ethernet and a data packet outputted from a neighboring network camera, in a network camera.
- the present invention can serially connect a plurality of network cameras, distinguished from the prior art in which the network cameras are connected in parallel using hubs. Therefore, when a network digital video recorder system is installed in a large building, the installation cost can be reduced and the system can be easily installed.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Closed-Circuit Television Systems (AREA)
- Studio Devices (AREA)
- Television Signal Processing For Recording (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2003014554 | 2003-03-08 | ||
KR1020030014554A KR20040079596A (ko) | 2003-03-08 | 2003-03-08 | 허브를 내장한 네트워크 카메라 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1458191A2 true EP1458191A2 (en) | 2004-09-15 |
Family
ID=32768624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04004353A Withdrawn EP1458191A2 (en) | 2003-03-08 | 2004-02-26 | Network camera embedded with hub |
Country Status (5)
Country | Link |
---|---|
US (1) | US20040175123A1 (zh) |
EP (1) | EP1458191A2 (zh) |
JP (1) | JP2004274762A (zh) |
KR (1) | KR20040079596A (zh) |
CN (1) | CN1543194A (zh) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007023838A1 (de) * | 2007-05-21 | 2008-11-27 | Adc Automotive Distance Control Systems Gmbh | Modulares Kamerasystem für Fahrerassistenzfunktionen |
WO2009118062A1 (de) * | 2008-03-26 | 2009-10-01 | Robert Bosch Gmbh | Skalierbares system und verfahren zum bereitstellen eines skalierbaren systems zur bereitstellung zumindest einer fahrerassistenz-funktion für ein kraftfahrzeug |
WO2011116875A1 (de) * | 2010-03-23 | 2011-09-29 | Lufthansa Technik Ag | Kameraeinheit insbesondere für überwachung in einem transportmittel |
WO2017074831A1 (en) * | 2015-10-30 | 2017-05-04 | Gopro, Inc. | Enumeration of cameras in an array |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2490702A1 (en) * | 2004-12-10 | 2006-06-10 | Brian Benoit | Network security system appliance and systems based thereon |
US20060161960A1 (en) * | 2005-01-20 | 2006-07-20 | Benoit Brian V | Network security system appliance and systems based thereon |
EP2035948B1 (en) * | 2006-06-27 | 2016-04-13 | Waterfall Security Solutions Ltd. | Unidirectional secure links from and to a security engine |
IL177756A (en) * | 2006-08-29 | 2014-11-30 | Lior Frenkel | Encryption-based protection against attacks |
IL180020A (en) * | 2006-12-12 | 2013-03-24 | Waterfall Security Solutions Ltd | Encryption -and decryption-enabled interfaces |
IL180748A (en) * | 2007-01-16 | 2013-03-24 | Waterfall Security Solutions Ltd | Secure archive |
US8223205B2 (en) * | 2007-10-24 | 2012-07-17 | Waterfall Solutions Ltd. | Secure implementation of network-based sensors |
KR101038666B1 (ko) * | 2009-07-01 | 2011-06-02 | (주)어드바인 | 디지털 비디오 레코더 장치 및 이를 이용한 비디오 채널 확장이 가능한 디지털 비디오 레코딩 시스템 |
US20130147973A1 (en) * | 2011-12-09 | 2013-06-13 | Micropower Technologies, Inc. | Wireless Camera Data Management |
US9124801B2 (en) * | 2012-07-26 | 2015-09-01 | Omnivision Technologies, Inc. | Image processing system and method using multiple imagers for providing extended view |
US9635037B2 (en) | 2012-09-06 | 2017-04-25 | Waterfall Security Solutions Ltd. | Remote control of secure installations |
US9419975B2 (en) | 2013-04-22 | 2016-08-16 | Waterfall Security Solutions Ltd. | Bi-directional communication over a one-way link |
IL235175A (en) | 2014-10-19 | 2017-08-31 | Frenkel Lior | Secure desktop remote control |
KR101660508B1 (ko) | 2015-04-03 | 2016-09-29 | 주식회사 아이디스 | 네트워크 녹화 장애 복구 시스템 |
IL250010B (en) | 2016-02-14 | 2020-04-30 | Waterfall Security Solutions Ltd | Secure connection with protected facilities |
US10728209B2 (en) * | 2017-01-05 | 2020-07-28 | Ademco Inc. | Systems and methods for relating configuration data to IP cameras |
JP6971624B2 (ja) * | 2017-05-11 | 2021-11-24 | キヤノン株式会社 | 情報処理装置、制御方法、およびプログラム |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6697103B1 (en) * | 1998-03-19 | 2004-02-24 | Dennis Sunga Fernandez | Integrated network for monitoring remote objects |
US6233611B1 (en) * | 1998-05-08 | 2001-05-15 | Sony Corporation | Media manager for controlling autonomous media devices within a network environment and managing the flow and format of data between the devices |
US6988008B2 (en) * | 2000-03-10 | 2006-01-17 | Adept Technology, Inc. | Smart camera |
TW550948B (en) * | 2001-07-04 | 2003-09-01 | Leadtek Research Inc | Audio/video IP camcorder |
AU2002258358A1 (en) * | 2000-10-27 | 2002-09-04 | Softconnex Technologies | Automatic embedded host configuration system and method |
JP4767443B2 (ja) * | 2001-07-04 | 2011-09-07 | 富士通株式会社 | ネットワーク蓄積型ビデオカメラシステム |
US20030043279A1 (en) * | 2001-09-04 | 2003-03-06 | Alardin Development Corporation | Video surveillance system |
-
2003
- 2003-03-08 KR KR1020030014554A patent/KR20040079596A/ko not_active Application Discontinuation
-
2004
- 2004-02-26 EP EP04004353A patent/EP1458191A2/en not_active Withdrawn
- 2004-03-05 US US10/792,764 patent/US20040175123A1/en not_active Abandoned
- 2004-03-05 CN CNA2004100047752A patent/CN1543194A/zh active Pending
- 2004-03-08 JP JP2004063306A patent/JP2004274762A/ja active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007023838A1 (de) * | 2007-05-21 | 2008-11-27 | Adc Automotive Distance Control Systems Gmbh | Modulares Kamerasystem für Fahrerassistenzfunktionen |
WO2009118062A1 (de) * | 2008-03-26 | 2009-10-01 | Robert Bosch Gmbh | Skalierbares system und verfahren zum bereitstellen eines skalierbaren systems zur bereitstellung zumindest einer fahrerassistenz-funktion für ein kraftfahrzeug |
WO2011116875A1 (de) * | 2010-03-23 | 2011-09-29 | Lufthansa Technik Ag | Kameraeinheit insbesondere für überwachung in einem transportmittel |
US9030557B2 (en) | 2010-03-23 | 2015-05-12 | Lufthansa Technik Ag | Camera unit in particular for surveillance in a transportation means |
WO2017074831A1 (en) * | 2015-10-30 | 2017-05-04 | Gopro, Inc. | Enumeration of cameras in an array |
Also Published As
Publication number | Publication date |
---|---|
KR20040079596A (ko) | 2004-09-16 |
JP2004274762A (ja) | 2004-09-30 |
CN1543194A (zh) | 2004-11-03 |
US20040175123A1 (en) | 2004-09-09 |
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AX | Request for extension of the european patent |
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18W | Application withdrawn |
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R18W | Application withdrawn (corrected) |
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R18W | Application withdrawn (corrected) |
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R18W | Application withdrawn (corrected) |
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RIC1 | Information provided on ipc code assigned before grant |
Ipc: H04N 7/18 20060101ALI20060110BHEP Ipc: H04N 7/12 20060101AFI20040609BHEP |